Method and system for planning implant component position

Abstract

A method for planning an orthopedic procedure including positioning a virtual implant component relative to a 3D volume of scan data of a patient is disclosed. A 3D volume of scan data of a patient, which includes scan data of a bony anatomy of the patient, is provided. A first 2D view of scan data is generated from the 3D volume of the scan data, wherein the 2D view of scan data comprises a first a portion of the bony anatomy. First positional information for the virtual implant component is defining relative to the first 2D view. A second 2D view of scan data is generated from the 3D volume of scan data, wherein the second 2D view of scan data is provided from the 3D volume of scan data at an angle relative to the first 2D view of scan data and comprises a second portion of the bony anatomy. Second positional information for the virtual implant component is defined relative to the second 2D view of scan data. 3D positional information for the virtual implant component relative the 3D volume of scan data is provided based on the first positional information and the second positional information.

Description

FIELD OF THE INVENTION[0001]This invention pertains in general to the field of planning an orthopedic procedure. More particularly, the invention relates to a method for planning an orthopedic procedure including positional information for a virtual implant component relative to a 3D volume of scan data of a patient. The positioning is based on providing positional information in multiple 2D views of scan data generated from the 3D volume of scan data that are combined to 3D positional information for the implant component relative the 3D volume of scan data.BACKGROUND OF THE INVENTION[0002]In orthopedic surgery damaged or worn joints can be replaced with prosthesis or implants, such as hip implants, knee implants, etc. The surgery may be planned to select the appropriate type, brand, size, etc. of the implant. This may be made using a technique referred to as templating. Conventionally, this was a manual technique, where pre-printed acetate sheets representing various configuration...

AI Technical Summary

Benefits of technology

The present invention provides a method for planning an orthopedic procedure by using a virtual implant component in a virtual space. The method involves generating a 3D volume of scan data of a patient, and creating positional information for the virtual implant component relative to the scan data. This allows for better planning and positioning of the implant during the procedure. The method may also involve adjusting the position of the virtual implant component based on the scan data and the position of the patient. The invention aims to improve the accuracy and efficiency of orthopedic procedures and provide better outcomes for patients.

Problems solved by technology

Furthermore, x-ray images are associated with magnifications and do not necessarily represent the true geometrical configuration of the patients bone.

Thus, this technique can only be a rough guide to select the implant to be implanted.

Even if this method may be more accurate than the manual templating technique using physical x-ray images, the scaling is an additional step that takes time and may not be accurate, whereby the selection of implant may be negatively affected.

Therefore, a 2D image does not capture that the femur is rotated relative to the pelvis, and any templating that rely on such an image will be imprecise.

Therefore, the technique disclosed therein suffers form the issues discussed below with regard to controlling position of virtual components in virtual space.

Hence this technique is a 3D planning technique that suffers form the issues discussed below with regard to controlling position of virtual components in virtual space.

Control of the position of virtual components in three dimensions in virtual space can be difficult for the person performing the pre-operative plan.

This may also affect any subsequent step that depends on the positioning of the geometric models of the artificial component, such as simulation of movement after selection of component, etc., and ultimately to inferior surgical outcome and patient safety and satisfaction.

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